api-framework-fastify SKILL.md skillA
api-framework-fastify from agents-inc/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add agents-inc/skills/api-framework-fastify@git:20261016.afd0e14Pins git:20261016.afd0e14 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- agents-inc/skills
- Path
src/skills/api-framework-fastify/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261016.afd0e14, committed Oct 16, 2026
- First version recorded
- Feb 2, 2026
- Size
- 13,991 bytes
- Repository stars
- 26
- License
- MIT
Fastify routes, JSON Schema validation, plugin system, TypeScript type providers.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# API Development with Fastify > **Quick Guide:** Use Fastify for high-performance Node.js REST APIs with built-in JSON Schema validation and powerful plugin encapsulation. Use `@fastify/type-provider-typebox` for end-to-end type safety (both `Type` and `TypeBoxTypeProvider` re-exported from it). Wrap shared plugins with `fastify-plugin` to expose decorators. Always define response schemas for serialization performance and data leak prevention. --- <critical_requirements> ## CRITICAL: Before Using This Skill **(You MUST use `withTypeProvider<>()` for type-safe request/response handling)** **(You MUST wrap shared plugins with `fastify-plugin` to expose decorators to parent scope)** **(You MUST define response schemas to enable fast-json-stringify optimization)** **(You MUST use named constants for HTTP status codes - never raw numbers)** </critical_requirements> --- **Auto-detection:** Fastify, fastify.register, fastify.decorate, fastify-plugin, TypeBox, @fastify/type-provider-typebox, @fastify/type-provider-json-schema-to-ts, fastify-type-provider-zod, preHandler, onRequest, preSerialization, JSON Schema validation, fast-json-stringify, FastifyPluginAsyncTypebox …
Read the whole file at its exact version.
How to install
mdr add agents-inc/skills/api-framework-fastify@sha256:e443601bd6116ad7The line at the top of this page pins the label git:20261016.afd0e14, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_fv65tkm3rbk4pghw)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Feb 2, 2026 and Oct 16, 2026, about one every 64 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261016.afd0e14 latest | 2026-10-16 | afd0e14 | 13,991 B | A | view · diff |
| git:20260328.f75efbc | 2026-03-28 | f75efbc | 14,190 B | A | view · diff |
| git:20260320.ead8e05 | 2026-03-20 | ead8e05 | 14,583 B | A | view · diff |
| git:20260316.5c62783 | 2026-03-16 | 5c62783 | 14,386 B | A | view · diff |
| git:20260202.b236384 | 2026-02-02 | b236384 | 26,640 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (13991 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
agents-inc/skills · 26 stars · license MIT · pushed 2026-10-27 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_fv65tkm3rbk4pghw GET https://markdownregistry.com/api/v1/resolve?ref=agents-inc/skills/api-framework-fastify GET https://markdownregistry.com/api/v1/blob/e443601bd6116ad7d6abdad6a3570cc6a7218578a3250a44d176804f28bbeda7
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.